From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E46B632C336 for ; Mon, 5 Jan 2026 08:23:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767601446; cv=none; b=fqHTr0YZu1UCQgXR1DwocEZz7CbK23KcnwG4ysBFT81gnB3Y0SvbrgmrsT50JUhz/tzuV4bGu7SdTABB/3KLrGCO2Xm04ohPhmSteTMaOWuh18dpfxn0CWJzayV9bpvRE9T5nZrEKKfWyAapF0Capgp+By27A2z3jWIRmt5ccVA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767601446; c=relaxed/simple; bh=jIFi+Zvcrqx5KM1Tn7Vx/X/Ro5vONbP7sNW0Mf3F+ms=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=M9NWbAKMH19llCqFyuw+0SCV1piriSs769X4Vi9ZNu2JVu3FS8cUiE4IcAaIBQLUlU2yh9qAS753UpxBWk69svt4Hz2ub0WB/Vzan3O80+zJ4pjb28i2W5ajZMneyOllVZYB+48g+W8dWbljKeUU44z3fJb6l1c5XTU9EajAZsQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=fail smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=U0EJGw52; dkim=pass (2048-bit key) header.d=redhat.com header.i=@redhat.com header.b=jhuW0fAF; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="U0EJGw52"; dkim=pass (2048-bit key) header.d=redhat.com header.i=@redhat.com header.b="jhuW0fAF" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1767601436; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=7Ko5SEulg/0toBKRpZAMNGsguRweEFK2Nvy+yQ/ftdE=; b=U0EJGw525N36TsoWhwIOnHH1npKLZARnTZguj2NX/3prDCcmeRPQbwt+hNfC0WXAQ3xUXf 72jxF5QIZDsJqNjXDrw/4uv/LyZg03zEUPojJb9o56hhsYdQgPliO9LIbaDzxu0dd7svGC fhwmZSYop0+2nnDzQJGqmS6QbD+QSn0= Received: from mail-wm1-f70.google.com (mail-wm1-f70.google.com [209.85.128.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-488-pYjDDlWaOCaVhXbwKMwtmQ-1; Mon, 05 Jan 2026 03:23:55 -0500 X-MC-Unique: pYjDDlWaOCaVhXbwKMwtmQ-1 X-Mimecast-MFC-AGG-ID: pYjDDlWaOCaVhXbwKMwtmQ_1767601434 Received: by mail-wm1-f70.google.com with SMTP id 5b1f17b1804b1-47d5bd981c8so36226555e9.0 for ; Mon, 05 Jan 2026 00:23:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=google; t=1767601434; x=1768206234; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=7Ko5SEulg/0toBKRpZAMNGsguRweEFK2Nvy+yQ/ftdE=; b=jhuW0fAFKWout8NvzOE75lr0thW/Bvte4Ikr3Ds2O8GTD5vrsS8ZXy/VT74UzpbAlc SkwWcLIGG2nOn2hJ3IOcZWexU19Ly66MFoocUxD3oz4K3yQnN35L6SydRy6k/+YyXyBd yPebtVj0mQhCIVAxVWRptftBXMGxBrm45coShq6icSkrazqS6YFoU488FT0ix7EZbdU0 Tgt3MkO+ClKdAAuJSso08c1qe6N9IhusEsMZYkwbRWP4dwNmx37rNJr4j76KliGNlmwr zxVVw3FkCTqRZ/sC1v8j5gVlPYVLiP9gScBNQgEJyJqfnGaU0TgCBqXdJGQXno4Ef1MY fWAQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767601434; x=1768206234; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=7Ko5SEulg/0toBKRpZAMNGsguRweEFK2Nvy+yQ/ftdE=; b=bWWAORGmLr0BeVrZCchct4KVF5/WPfudE6KcgcA+JsQlPKlcnfrSdvLpX6id8vU0Ij ncrSL6bNDqRTFVg62KnRUebT7dxSyr1TM0DYtAGezGhdFot7FH/qxq+oAIei4UWcUYSD J5HJweSvfAcffIpi68NprtY+/y0YZUxwT33ns2lXB+1iq6c8NxOZ0SuJSrSkjZOzMS3o KMUPlHIDcPXTmk/ub5HsoUU2Tv5xhyzCiQtjMv42iobvaC6Nvjy9KolbeaeLDKGiQ8cu 16dmKsRGAu912RRXbsEjAYPbiZ21F+o3HhPAVWWJjr7MsO9XJrqifpl94H+Sd6pyAzRA hmmg== X-Forwarded-Encrypted: i=1; AJvYcCVXsmBV8kISOstZ+T8HeaB0HB1/4QtJYcWGAq5aE1O29i8MKvQY1gziYVSj32qIQvvKAH+ZBdU2LsbLqbI=@vger.kernel.org X-Gm-Message-State: AOJu0YwC66twNA7sWz3hjTl1NW2F78F41ZUov3fAPu5vhMhPhhD+z8ZK KfBYlhUEqRMbrQxguWl6x9dUPnBr3rJ6Dg5hY758l6LWehVrPe3XzfHxVva1Len0I/sq6bSweHB tUhPPJBuO+7EgiFh3CSjlFS9nSYyjVOnTtOog/0JrfQMjwubNIWlteKBObvWoNgu/mA== X-Gm-Gg: AY/fxX4Z/ozpY9HW8hr8LZ4GGxko06lZ6w82EuDFU7oiS9okyDHHRGf/QukC63d6JR/ 6m6FObwgx7NxIrYtkeTTrMNVDZNldTgdnnATLQ4pOKF0rkBEts2bKejhAo6ni9u3kQ1OU/aZ6LL o83M5HiZObDSEOIBgNgkUYtUbfBhDByEqx9ZdPk2iBxxxmn0Xx9NxqL1QEPUUc2oYxXXAEU5iHz Ah+vSh2ZXQzDCmywWZIpaX0HgWo18zDcWx1/hLfMGRYX7vPvNp1LGXL9hHOtkzyFPJzASgp0z+2 hnxne9ZfG6qe+KViHtTtpfP1m8z7KiSpYtkAOVPQaS+owiYdEPRV/Hq50n23sAEiguXyHdB5ZDX 0xBz9PuxBIERkY0G0ZjSQPbN9fSHfJZdJjw== X-Received: by 2002:a05:600c:4fd4:b0:477:9cdb:e336 with SMTP id 5b1f17b1804b1-47d1957afd8mr619221815e9.21.1767601433827; Mon, 05 Jan 2026 00:23:53 -0800 (PST) X-Google-Smtp-Source: AGHT+IGMqr5RF3PmeKLntFlggNTcPo2ZIBIezL7tE6/J3AdeaKkIeEvwYa+UmsMabaObW/38gLAvfg== X-Received: by 2002:a05:600c:4fd4:b0:477:9cdb:e336 with SMTP id 5b1f17b1804b1-47d1957afd8mr619221495e9.21.1767601433387; Mon, 05 Jan 2026 00:23:53 -0800 (PST) Received: from redhat.com (IGLD-80-230-31-118.inter.net.il. [80.230.31.118]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-4324eab2721sm99141541f8f.39.2026.01.05.00.23.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Jan 2026 00:23:52 -0800 (PST) Date: Mon, 5 Jan 2026 03:23:49 -0500 From: "Michael S. Tsirkin" To: linux-kernel@vger.kernel.org Cc: Cong Wang , Jonathan Corbet , Olivia Mackall , Herbert Xu , Jason Wang , Paolo Bonzini , Stefan Hajnoczi , Eugenio =?utf-8?B?UMOpcmV6?= , "James E.J. Bottomley" , "Martin K. Petersen" , Gerd Hoffmann , Xuan Zhuo , Marek Szyprowski , Robin Murphy , Stefano Garzarella , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Petr Tesarik , Leon Romanovsky , Jason Gunthorpe , Bartosz Golaszewski , linux-doc@vger.kernel.org, linux-crypto@vger.kernel.org, virtualization@lists.linux.dev, linux-scsi@vger.kernel.org, iommu@lists.linux.dev, kvm@vger.kernel.org, netdev@vger.kernel.org, Viresh Kumar , "Enrico Weigelt, metux IT consult" , Viresh Kumar , Linus Walleij , linux-gpio@vger.kernel.org Subject: [PATCH v2 15/15] gpio: virtio: reorder fields to reduce struct padding Message-ID: References: Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Mailer: git-send-email 2.27.0.106.g8ac3dc51b1 X-Mutt-Fcc: =sent Reorder struct virtio_gpio_line fields to place the DMA buffers (req/res) last. This eliminates the padding from aligning struct size on ARCH_DMA_MINALIGN. Acked-by: Viresh Kumar Signed-off-by: Michael S. Tsirkin --- drivers/gpio/gpio-virtio.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-virtio.c b/drivers/gpio/gpio-virtio.c index b70294626770..ed6e0e90fa8a 100644 --- a/drivers/gpio/gpio-virtio.c +++ b/drivers/gpio/gpio-virtio.c @@ -26,11 +26,12 @@ struct virtio_gpio_line { struct mutex lock; /* Protects line operation */ struct completion completion; + unsigned int rxlen; + __dma_from_device_group_begin(); struct virtio_gpio_request req; struct virtio_gpio_response res; __dma_from_device_group_end(); - unsigned int rxlen; }; struct vgpio_irq_line { -- MST